baber/WOPTO huggingface dataset:
Patent GB-1056086-A (GB)
Title: Improvements in steam-traps having temperature-responsive control devices
IPC: G05D23/08
Filed: 1965-03-22
Abstract: 1,056,086. Steam traps. H. R. GERDTS and W. F. GERDTS, [trading as GUSTAV F. GERDTS KOMM. GES.]. March 22, 1965 [March 20, 1964], No. 12012/65. Heading F4U. [Also in Division G1] In a steam trap the valve of which is actuated by rhomboidal bimetallic plates of the kind described in Specification 848,969 the plates 5 are weakened along their shorter axes, e.g. by apertures 9b, 9d, 9e, cut-away portions or a groove cut in the plate along the short axis. The arms 7 first bear upon one another and then the shorter arms 8, and the springing characteristic of the plates stiffens with increase of temperature and follows the saturated steam line. The apertures may form the holes for the guide pins. Notches may be made at the ends of the shorter axis. Various shapes of plate are described.
Patent GB-179421-A (GB)
Title: Improvements in and connected with portable elevators or conveyors
IPC: B65G19/22
Filed: 1921-04-27
Abstract: 179,421. Johnson, A., and Mills, S. April 27, 1921. Portable endless-chain push-plate or scraper and trough conveyers and elevators; push-plates and scrapers, construction of.-In portable scraper and trough conveyers and elevators, the metal side plates a<2> of the trough are secured at rightangles to the metal base a<1>, and the metal scrapers c have slots c<1> cut in the bottom edge to receive the chains d. The scrapers are riveted to extensions e<1> of chain links e.
Patent GB-624917-A (GB)
Title: Preservation of rubber latex
IPC: C08C1/06
Filed: 1947-05-05
Abstract: Natural rubber latex as obtained from the tree, is preserved by adding to it a colloid stabiliser and a neutral bactericide.  The stabiliser is defined as an agent known to be sufficient of itself to keep rubber particles for an indefinite time in a state of stable suspension in water.  It may be a synthetic detergent preferably of the anionic type insensitive to hard water, or of the non-ionogenic type.  Specified compounds are the condensation products of ethylene oxide with fatty alcohols such as cetyl alcohol, acids, and esters; the polyglycol ether described in Specification 470,181, [Group III], and sodium p anisiline oeyl suiphonate.  The bactericide is defined as a substance which when added to the latex inhibits the growth of bacteria within the latex.  Specified bactericides are sodium pentochlorphenate, sodium trichlorphenate, sodium mercaptobenzthiazole and organic mercury compounds such as phenyl mercuriacetate and ethyl mercuric chloride.  The Ph is maintained close to 7.
Patent GB-474605-A (GB)
Title: Improvements in or relating to wheeled jacks for vehicles
IPC: B60B29/00
Filed: 1936-04-28
Abstract: 474,605. Hand trucks. BIRNHOLZ, P. J. April 28, 1936, No. 12073. [Class 108 (i)] [Also in Group XXX] A wheeled jack for use in manoeuvring vehicles comprises a supporting frame 8, 9 on which is adapted to be raised and lowered an inverted U-shaped cradle frame 1, the lower ends 3 of which form a seating for a vehicle wheel 4, the wheels 11 of the supporting frame being on the opposite side to the vehicle wheel so that when the cradle is raised the weight causes the jack to bear against the side of the wheel. The cradle frame 1 is of inwardly facing channel section metal, the outwardly splayed lower ends of the limbs 2 being connected by a cross-bar 7 and having riveted &c. thereto the shoes 3 shaped to grip the wheel tyre. The cross-bar 8 of the supporting frame slides in the channel frame 1 and is carried by the legs or posts 9 which are offset as shown in Fig. 3, passing through apertured guides on the cross-bar 7 and being mounted at their lower ends on wheels or castors 11. The cradle frame may be raised by a toggle connection 15, 16, operable by a lever 13 and bearing against a stop 19 when past its dead centre, or lifting may be effected by other lever systems or cams &c. The wheels 11, if not castor wheels, may be mounted on fixed axles 12 inclined to the carrying frame so that their axes, if produced, would, when the device is applied to the wheel of a vehicle, intersect at a point near the centre of the other axle of the vehicle, thereby facilitating swinging of the vehicle about such point.
Patent GB-270734-A (GB)
Title: Improvements in high frequency signalling systems
IPC: H03F3/22
Filed: 1927-05-05
Abstract: 270,734. British Thomson-Houston Co., Ltd., (Assignees of Baker, TV. R. G.). May 5, 1926, [Convention date]. Thermionic amplifiers and generaotrs ; keying systems.-A high-frequency signalling system has a plurality of amplifying units excited from a source of high-frequency current 2, and an independent coupling between each unit and a transmitting circuit 1, so that if one or more units are removed from the system no change in tuning is necessary. Each amplifying unit consists of a pair of thermionic valves 3, 4 or 5, 6 connected in push-pull relation and having independently tuned output circuits 11, 13, 14 and 12, 15, 16 respectively, independently coupled through coils 17, 18 to the transmitting circuit. Tuned trap circuits 21, 21<1> are provided between a high-tension main 19 and each amplifier unit to prevent reaction between the units. Grid-biasing potentials are obtained by thermionic rectifiers 22, 24 supplied with alternating current by transformers 23, 25. The grid-bias of the oscillating valve 2 is normally of such a value that no oscillations are produced and signalling is effected by a relay 26 closing a shunt circuit round a grid condenser 27 and resistance 28.
Patent GB-192355-A (GB)
Title: A new or improved balancing device for use between coupled vehicles for producing desired wheel pressure
IPC: B61G5/02
Filed: 1922-04-29
Abstract: 192,355. Aktiebolaget Ljungstr÷ms Angturbin. Jan. 30, 1922, [Convention date]. Axle-trucks and bogies; springs, arrangement of and mounting bodies on. - The distribution of weight among the wheels of coupled locomotives or vehicles is varied by the production of a horizontal force between the two vehicles with its points of application above or below the coupling. An engine and tender each with two supporting systems are shown diagrammatically. Each of the supporting systems shown in Fig. 1 is equivalent to a single force at the points 8, 9, 10, 11 shown in Fig. 2. If a spring or rigid connection above the coupling produces a compressive force Q, the loads at the points 9 and 10 will be de,- creased and those at the points 8, 11 will be increased. The converse action takes place if the force Q is tensile. In a modification, the spring system on one vehicle may be unstable; that is, it is equivalent to a single point of support. The two vehicles are then connected by a transverse pivot so that one partly supports the other and a force Q is applied as described previously. The force Q may be applied by a link forming a connection between the balance lever systems on the two vehicles. In a further modification, the spring systems on both vehicles are unstable, and a rigid connection is employed which is adapted to yield under the action of a spring when a certain maximum force is produced.
Patent GB-353016-A (GB)
IPC: H04R7/20
Filed: 1930-04-16
Abstract: 353,016. L o u d - s p e a k e r s ; d i a - phragms. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Smythe, E. H. ; Evanston, Illinois, U.S.A.) April 16, 1930, No. 12097. Convention date, April 20, 1929. [Class 40 (iv).] A diaphragm for acoustic devices, such as loudspeakers, comprises fluid enclosing portions adapted to produce tension in the diaphragm. Figs. 1 and 2 show a loud-speaker of similar construction to that described in Specification 290,239, [Class 40 (iv), Telephones &c.], but in which the diaphragm is provided with fluid enclosing tubular portions 21, each of these portions being formed by securing a strip 30 over a depression 29 formed across the face of the diaphragm, each end of the portion being sealed by a light membrane 72, preferably of thin rubber, through which fluid under pressure may be introduced through a suitable valve, if desired. If the chamber 32 thus formed is not perfectly airtight, a tube preferably of very light rubber membrane and containing fluid under pressure is inserted within the tubular portion. When the diaphragm is placed under tension, the tubular portions are distorted thereby reducing the volume of fluid enclosed and increasing the fluid pressure within the tubular portions. In acting to restore these portions to their original shape, the increased pressure acts to place the diaphragm under a uniform tension to a degree approaching the elastic limit of the material thereof. The tubular portions also simulate an additional length of diaphragm and act to reduce wave reflection at the ends thereof. According to modifications, the fluid enclosing portions are formed (1) as separate members from the main portion of the diaphragm, Fig. 4 (not shown), or (2) by opposed depressions across the ends of a double diaphragm, Fig. 5 (not shown). Fig. 7 shows a modification of the construction shown in Figs. 1 and 2 in which the diaphragm 45 is mounted under a slight initial tension by clamping its ends between serrated members 49, the degree of such tension being controlled by the number and amplitude of the serrations. Further modifications are described in which the diaphragm 45 is formed with transverse corrugations and in which the fluid enclosing portions are formed by opposed depressions across the ends of a double corrugated diaphragm, Fig. 10 (not shown). Specification 353,030 also is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also constructions similar to that described in Specification 290,239 but in which the diaphragm is provided with transverse corrugations over its whole surface or at its end portions. This subject-matter does not appear in the Specification as accepted.
Patent GB-816439-A (GB)
Title: Improvements in or relating to heat exchange apparatus
IPC: C12C13/02
Filed: 1956-04-20
Abstract: 816,439. Washing-boilers and setpans. RAMSDEN & SON Ltd., R., and HOWES, A. F. Jan. 21, 1957 [April 20, 1956], No. 12099/56. Class 64(1) A heat exchanger, for insertion in a liquid, has a number of sections or chambers 11, 12 to which heating or cooling fluid may be supplied, the supply to each section being independently controllable whereby part or all of the exchanger may be put into operation according to the height of the liquid about the sections. In the preferred embodiment, the exchanger is mounted in a brewing copper having supply and discharge conduits 3, 4 for wort and consists of three elements 5 arranged at 120 degrees about a common steam supply pipe 6. Each element includes a vertical open ended cylinder to which the annular chambers or sections 11, 12 are brazed and through which the liquid to be heated is pumped or convected. The pipe 6 supplies the three upper chambers 11 while a pipe 8 supplies the three lower chambers 12. Low-pressure steam may be supplied to the upper chambers and high-pressure steam to the lower chambers, the condensate from the upper and lower chambers being conveyed to separate drip receivers and steam traps.
Patent GB-1314111-A (GB)
Title: Operating mechanism for aircraft control systems
IPC: B64C13/24
Filed: 1971-04-29
Abstract: 1314111 Aircraft control systems DORNIER AG 29 April 1971 [20 June 1970] 12130/71 Heading B7G [Also in Division F2] A multiple-function operating mechanism for aircraft control systems having one input and three different outputs, consists of three arrangements each comprising a four-pivot system I-IV and a coupled three-pivot system IV-VI; the systems I-IV incorporate drive rockers 32a, 32b, 32c connected at different inclinations α, #, γ to an input shaft 31 and the systems IV-VI are connected to output links 36 having preselected tapping points 38. The individual linkages 33-35 of each arrangement may be provided in pairs (as shown) and the linkages 34 may be connected to a common shaft 37.
Patent GB-1169106-A (GB)
Title: Artificial Fiber having Voids and method of manufacture thereof
IPC: D01D5/247
Filed: 1967-03-15
Abstract: 1,169,106. Artificial fibres having voids. TEIJIN Ltd. 15 March, 1967 [15 March, 1966], No. 12135/67. Heading B5B. [Also in Division D1] Artificial fibres having voids are manufactured by contacting a drawn fibre composed of a uniform blend of 5-50% by weight of fibre forming linear polymers (component A), and 95-50% by weight of fibre forming linear polymers (component B), not compatible with the first named polymers, with chemicals which are capable only of acting on component A and which remove at least a part of said component A thereby forming, in the fibre, a plurality of voids extending lengthwise axially of the fibre. Components A and B may each consist of one or more polymers. Polymers which may be used include polyamides, polyesters, polycarbonates, polyacrylonitrile, polyvinyl chloride and polyolefins. The voids may be distributed uniformly throughout the whole of the fibre, or the fibre may consist of a compact core consisting of component A and component B, and a periphery consisting only of component B and containing substantially all the voids. In the latter case the concentration of the attacking chemical, the length of time for which the fibre is in contact with it, and the temperature, may be controlled so as to remove varying amounts of component A. Aqueous caustic soda may be used to remove polyester from such a composite filament, aqueous formic acid to remove polyamide, and methylene chloride may be used when component A is a polycarbonate.
Patent GB-212157-A (GB)
Title: Improvements in or in connection with brushes
IPC: A46B11/00
Filed: 1923-05-07
Abstract: 212,157. Marston, G. S. May 7, 1923. Reservoir brushes.- A brush 4 is provided with a container 1 for cleansing liquid which is formed with a flange 7 adapted to cooperate with a screwed cap 5 to secure an apertured metal plate 8 and a resilient diaphragm 10. Pressure on the diaphragm causes the liquid to be forced out of the container through a duct 3 in an extension 2 which is integral with or attached to the container and is screwed into the back of the brush to project into proximity with the bristles.
Patent GB-348346-A (GB)
Title: Manufacture of dichlorethylene
IPC: C07C17/25
Filed: 1930-04-17
Abstract: 1 : 1 : 2-trichlorethane is conducted at a high temperature over a heated surface with the production of dichlorethylene, the symmetrical compound generally predominating.  The reaction may be facilitated by the use of a metal salt, preferably a salt of copper, iron, or an alkaline-earth metal, as catalyst which may be carried on a suitable carrier such as pumice-stone or charcoal. In examples (1) 700 grams of 1 : 1 : 2-trichlorethane are passed per hour through a porcelain tube containing 600 c.c. of a catalyst containing 30 parts of cupric chloride to 100 parts of pumice-stone.  At 500 DEG  C., 70 per cent of the trichlorethane is converted, and the product contains 15 per cent of unsymmetrical and 85 per cent of symmetrical dichlorethylene.  At 450 DEG  C., only 25 per cent of the trichlorethane is converted, the product of reaction containing 30 and 70 per cent respectively of the unsymmetrical and symmetrical dichlorethylenes.  (2) By passing trichlorethane over barium chloride in highly active carbon at 320 DEG  C., and at the rate of only 90 grams per hour, almost quantitative conversion is obtained.  (3) A rapid gas current is employed as described in Specification 302,321, [Class 2 (iii), Dyes &c.], 1000 grams of trichlorethane being passed per hour over the catalyst of example 2 at 500 DEG  C.  About half of the parent substance is converted, but the yield of the same apparatus is five times as great as in the previous example.
Patent GB-121261-A (GB)
Title: Improvements in Devices for Preventing Singles in Spinning, Twisting, and like Machinery.
Inventor: MIDGLEY HENRY
IPC: D01H13/22
Filed: 1918-07-30
Abstract: 121,261. Midgley, H., and Emmott, F. July 30, 1918. Stop-motions. - To prevent singles in spinning, twisting, and like machines, a pivoted finger-like device F is mounted on the thread board B, one end being mounted in a bearing A, and the other bent at right-angles and adapted to rest upon the yarn D with sufficient pressure to break the remaining end or ends should one or more ends break or run out.
Patent GB-690493-A (GB)
Title: Improvements in or relating to attachments for spectacles
IPC: G02C9/04
Filed: 1950-05-18
Abstract: 690,493. Spectacle attachments. FISH OPTICAL CO., Ltd., and BAKER, E. P. Aug. 17, 1951 [May 18, 1950], No. 12510/50. Class 97 (i). Relates to a spectacle attachment of the kind comprising two transparent or semi-transparent members (such as lenses, screens or filters) and/or two rims arranged side-by-side in one plane, clips arranged at or near the peripheries of the auxiliary optical members or rims to fit over the front of a spectacle frame, and a resiliently flexible strip, rod or bar connection, extending between the optical members or rims, and tending to unflex when the members or rims are mounted on the spectacle front, to cause the clips to grip the front; and consists in providing means for adjusting the length of the connection to adapt the attachment for fitting any of a range of spectacle fronts of various sizes and shapes. The attachment shown comprises split rims 1, 2 and auxiliary optical members 6 seated in V-shaped grooves 7. Clips 21 are provided on the rims for attachment to a spectacle front, and the rims are interconnected by a resilient connection comprising two overlapping sections 11, 12 soldered at 13 to the respective rims. Each section passes through a short tube 16 soldered to a rim, and near its free end has soldered thereto a short tube 17 or 18 through which passes the other section. When the connection is unflexed the distance between the rims can be varied, but, when the attach. ment is clipped to the spectacle front, the con. nection is flexed and the tubes 17, 18 bind frictionally against the sections 11, 12. In another form, each section 11, 12 is provided at its free end with a lug which may engage in one of a series of notches formed in the other section, Fig. 3 (not shown). The two sections may be spring urged to positions in which they have maximum overlap.
Patent GB-592472-A (GB)
Title: Improvements in and relating to the control of tabs on aircraft control surfaces
IPC: B64C13/00
Filed: 1945-05-18
Abstract: 592,472. Control means for tabs on aircraft control surfaces. AIR-EQUIPEMENT. May 18, 1945, No. 12517. Convention date, Jan. 7, 1943. [Class 4] A tab on a movable aircraft control surface is controlled by driving means and reduction gearing also mounted on the control surface. As shown, a reversible electric motor 14 controlled from the pilot's cockpit by a switch 24, spring-urged to the off position, drives a non-reversible screw 5 secured against axial movement by a thrust bearing 6 by means of reduction gearing 12, torque-limiting clutch 13 and a bevelwheel 11 in a casing 1 secured to the control surface. An internally-threaded sleeve 3 meshing with the screw 5 and secured against rotation by a stud 7 in the casing 1 engaging a groove 8 in the sleeve is linked to the tab so that the tab is turned by axial movement of the sleeve 3. The motor 14 is fed for either direction of rotation from a battery 21 through two separate circuits, either of which may be closed by the two-way switch 24. Within the same casing 23 (shown twice in the drawing) as the switch 24 is a press-button switch 26 which when depressed completes through a switch 29 operated by the sleeve 3 whichever of two circuits will run the motor in a direction to return the tab to its normal position. Locking means secure the switch 26 in its depressed position if it is pressed while the switch 24 is central. A device 31, 32 indicating the position of the tab on a dial 31 in the cockpit is provided. The electric motor may be replaced by a hydraulic or compressed air motor, the switches 24, 26, 29 being replaced by valves.
Patent GB-238616-A (GB)
Title: Improvements in or relating to control levers for bowden wire and like mechanism
IPC: G05G5/26
Filed: 1924-05-21
Abstract: 238,616. Bowden Wire, Ltd., and Nisbet, A. H. May 21, 1924. Control mechanism. - In Bowden-wire and like control mechanism for aircraft, motorcycles, &c. comprising a handlever movable relatively to a base, the lever is frictionally retained in adjusted position by the pressing together of coned, bevelled, or similarly shaped surfaces upon the lever and upon a split or sectional disc or collar h. As shown, the disc end e of the lever d turning about a boss c upon a base a is conically recessed to receive a similarly shaped split collar h which is pressed down by one or more spring washers j, a cap k, and a stud l screwing into the boss. The boss, cap, and collar have interengaging flat surfaces. The base has a tangential wall portion which is recessed at q to form an abutment for the outer member of the Bowdenwire mechanism, and is bored and slotted to accommodate the inner member, this member having a nipple seated in a recess q which is formed in the side of the lever and communicates with a circumferential groove f in the lever through a lateral slot. More than one lever may be mounted on the boss, and the lever or each lever may operate more than one set of Bowden mechanism.
Patent GB-127252-A (GB)
Title: Improvements in or relating to Incubators.
Inventor: MAURICE POTERLET
IPC: A01K41/00
Filed: 1919-05-19
Abstract: 127,252. Poterlet, M. May 24, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Hatching and rearing appliances. - The egg drawer of an incubator is arranged above the water-tank a. Two or more drawers w i t h latticed bottoms may be arranged one over the other. The cover of the incubator may be of glass to enable the eggs in the drawer to be seen. The tank a, which is fitted with an overflow basin and is not provided with an outlet pipe, being arranged to be emptied by a rubber siphon, has its water heated by passage through a pipe extending to the outside of the incubator and exposed to the heat of a paraffin, alcohol, oil, petrol, gas, acetylene, or electric lamp, or a tube charged with coal or briquettes. Insulating-layers b of felt, cork, linoleum, rubber, amianth, &c. are affixed to the walls of the egg chamber and drawers. The incubator may be converted into a drying-box or broader by substituting a metallic bottom for the drawers.
Patent GB-813227-A (GB)
Title: Apparatus for removing bulges on components formed from rod-like material and in particular for removing welding bulges on chain links
IPC: B21L15/00
Filed: 1957-04-18
Abstract: 813,227. Reciprocatory-filing. ALLMANNA SVENSKA ELEKTRISKA A.B. April 18, 1957 [April 18, 1956], No. 12664/57. Class 83 (3). In a machine for the removal of excessive material from a rod-like workpiece 28, e.g. a welded chain link, a reciprocating tool 21 is moved angularly around the axis of the work. The tool 21, having file-like cutting edges on the inner surfaces of the limbs 26, 27, is carried by an arm 18 reciprocated relatively to a link 13 by an eccentric 15, chain-driven by a motor 25 on the link. The latter forms part of a pantograph-linkage 16, 7, being pivoted at 14 to link 16 and having a pivot 12 carried by the piston-rod 11 of a fluid-pressure cylinder 9 attached to link 7. Links 7, 16 are connected by gears 17, 8, secured thereto, and a rotatablegear 31 on the frame 1. In operation, fluid is admitted to cylinder 9 to raise link 13 from the position shown to allow a chain-link 28 to be clamped at 29. With the tool being reciprocated by eccentric 15, link 13 is lowered by the cylinder 9 to the position shown, the arm 18 being guided by feelers 23 and guides 3 to cause the tool to embrace the work. The tool is then swung 90 degrees on each side of the position shown by oscillating the pantograph through gear 31, thus machining the work around its complete circumference. The device may be used with an automatic chain-welding machine and controlled in synchronism with the welding operation, the cutting being performed before the work has cooled down.